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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .3073798259974233 | 3.6841e-08 | |
a | 2.698062139843763 | 8.0061e-09 | au |
q | 1.868732268768352 | 1.0096e-07 | au |
i | 8.906527025542902 | 4.3562e-06 | deg |
node | 344.2500823111633 | 2.4441e-05 | deg |
peri | 11.23060454552148 | 2.5111e-05 | deg |
M | 2.834960149001784 | 6.4818e-06 | deg |
tp | 2459187.752623701885 (2020-Dec-04.25262370) | 2.9117e-05 | TDB |
period | 1618.737204802446 4.43 | 7.205e-06 1.973e-08 | d yr |
n | .2223955802905853 | 9.8989e-10 | deg/d |
Q | 3.527392010919174 | 1.0467e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
15.07 |
|
n/a |
E2021B55 |
|
diameter |
diameter |
4.783 |
km |
1.592 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
geometric albedo |
albedo |
0.093 |
|
0.049 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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|
100993 (1998 QG39) Discovered 1998-Aug-17 by LINEAR at Socorro |
Reference: 20051019/Numbers.arc | Last Updated: 2005-10-26 |
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